Consequently, if this ground-weave is repeated all over the width of
the fabric, we must use either:
396 hooks, leaving 4 hooks more to be added to the two rows
already used; or 408 hooks, requiring us to call upon the
reserve rows for eight extra hooks.
Hooks which have no leashes adjusted must be taken out of the machine.
Sometimes two, three, or more, machines are employed on one loom, and
may be worked in different manners. In this country Jacquard machines,
for power as well as hand-looms, are made of iron, whereas in Europe
the machines for hand-looms (comprising the greater part of the
Jacquard machines in use) are made of wood; using the iron ones only
for power-looms; and even yet, in most cases, the wooden machines are
used for the latter.
Illustrations of the Different Parts of the Jacquard Machine.--Method
of Operation, etc.
Every Jacquard machine may be divided into the following parts:
1. The Frame and the Perforated Board through which
the neck-cords are passed.
2. The Griffe and necessary attachments for lifting the
same.